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Crick Primary School: Mathematical Puzzles
The resource consists of 378,028 math puzzles available in three different levels. Students use multiplication, division, addition, and subtraction skills to solve the puzzles. The puzzles can be solved online or downloaded as a PDF file.
History is Fun
Jan Brett: Subtraction Fact Puzzles Pdf
Click on each puzzle and print out these colorfully illustrated PDF file pages to practice these subtraction facts. Put them in a math center. Laminate them and they will last even longer.